title: An experimental and kinetic investigation of premixed furan/oxygen/argon flames.
abstract: The detailed chemical structures of three low-pressure (35 Torr) premixed laminar furan/oxygen/argon flames with equivalence ratios of 1.4, 1.8 and 2.2 have been investigated by using tunable synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam mass spectrometry. About 40 combustion species including hydrocarbons and oxygenated intermediates have been identified by measurements of photoionization efficiency spectra. Mole fraction profiles of the flame species including reactants, intermediates and products have been determined by scanning burner position with some selected photon energies near ionization thresholds. Flame temperatures have been measured by a Pt-6%Rh/Pt-30%Rh thermocouple. A new mechanism involving 206 species and 1368 reactions has been proposed whose predictions are in reasonable agreement with measured species profiles for the three investigated flames. Rate-of-production and sensitivity analyses have been performed to track the key reaction paths governing furan consumption for different equivalence ratios. Both experimental and modeling results indicate that few aromatics could be formed in these flames. Furthermore, the current model has been validated against previous pyrolysis results of the literature obtained behind shock waves and the agreement is reasonable as well.
authors.affiliation: Laboratoire Réactions et Génie des Procédés, CNRS, Nancy Université, ENSIC, 1, rue Grandville, BP 451, 54001 Nancy Cedex, France ; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Tian
authors.forename: Tao
authors.initials: T
authors.lastname: Yuan
authors.forename: Rene
authors.initials: R
authors.lastname: Fournet
authors.forename: Pierre-Alexandre
authors.initials: PA
authors.lastname: Glaude
authors.forename: Baptiste
authors.initials: B
authors.lastname: Sirjean
authors.forename: Frédérique
authors.initials: F
authors.lastname: Battin-Leclerc
authors.forename: Kuiwen
authors.initials: K
authors.lastname: Zhang
authors.forename: Fei
authors.initials: F
authors.lastname: Qi
keywords: Furan; Kinetic modeling; Molecular-beam mass spectrometry; Premixed laminar flame; Tunable synchrotron VUV photoionization